Using the keys

Back
Go back to the previous screen
Close the on-screen keypad, a dialog box, an options menu, or the Notification panel
Home
Go to the Home screen
Press and hold to open a window showing your most recently used applications
Menu
Open a list of options available in the current screen or application

Battery

Charging the battery

Your phone battery is partly charged when you buy the phone. It may take a few minutes
before the battery icon appears on the screen when you connect the phone charger
cable to a power source, such as a USB port or a phone charger. You can still use your
phone while it is charging. Charging the phone over a long period of time, for example,
overnight, does not damage the battery or the phone.
The battery will start to discharge a little after it is fully charged and then it charges again after
a certain time when the phone charger is connected. This is to extend battery life and may
result in the charge status showing a level below 100 percent.
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